(PECL event >= 1.5.0)
EventBuffer represents Libevent's "evbuffer", an utility functionality for buffered I/O.
Event buffers are meant to be generally useful for doing the "buffer" part of buffered network I/O.
public add ( string $data ) : bool
public addBuffer ( EventBuffer $buf ) : bool
public appendFrom ( EventBuffer $buf , int $len ) : int
public __construct ( )
public copyout ( string &$data , int $max_bytes ) : int
public drain ( int $len ) : bool
public enableLocking ( ) : void
public expand ( int $len ) : bool
public freeze ( bool $at_front ) : bool
public lock ( ) : void
public prepend ( string $data ) : bool
public prependBuffer ( EventBuffer $buf ) : bool
public pullup ( int $size ) : string
public read ( int $max_bytes ) : string
public read ( mixed $fd , int $howmuch ) : int
public readLine ( int $eol_style ) : string
public search ( string $what [, int $start = -1 [, int $end = -1 ]] ) : mixed
public searchEol ([ int $start = -1 [, int $eol_style = EventBuffer::EOL_ANY ]] ) : mixed
public substr ( int $start [, int $length ] ) : string
public unfreeze ( bool $at_front ) : bool
public unlock ( ) : bool
public write ( mixed $fd [, int $howmuch ] ) : int}
The number of bytes stored in an event buffer.
The number of bytes stored contiguously at the front of the buffer. The bytes in a buffer may be stored in multiple separate chunks of memory; the property returns the number of bytes currently stored in the first chunk.
EventBuffer::EOL_ANY
The end of line is any sequence of any number of carriage return and linefeed characters. This format is not very useful; it exists mainly for backward compatibility.
EventBuffer::EOL_CRLF
The end of the line is an optional carriage return, followed by a linefeed. (In other words, it is either a "\r\n"
or a "\n"
.) This format is useful in parsing text-based Internet protocols, since the standards generally prescribe a "\r\n"
line-terminator, but nonconformant clients sometimes say just "\n"
.
EventBuffer::EOL_CRLF_STRICT
The end of a line is a single carriage return, followed by a single linefeed. (This is also known as "\r\n"
. The ASCII values are 0x0D
0x0A
).
EventBuffer::EOL_LF
The end of a line is a single linefeed character. (This is also known as "\n"
. It is ASCII value is 0x0A
.)
EventBuffer::PTR_SET
Flag used as argument of EventBuffer::setPosition() method. If this flag specified, the position pointer is moved to an absolute position within the buffer.
EventBuffer::PTR_ADD
The same as EventBuffer::PTR_SET
, except this flag causes EventBuffer::setPosition() method to move position forward up to the specified number of bytes(instead of setting absolute position).
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https://www.php.net/manual/en/class.eventbuffer.php